How is the cable ran? Is it ran overhead strung though holes in the joist and then vertically dropped down to the receptacles? If it is then you should "sleeve" the romex with a short run of conduit that extends from the receptacle box to near the ceiling joist with a conduit to romex
fitting on the end. Also make sure you follow the notching & boring rules
to structually protect your framing members.
However if your cable is run horizontally along the wall between receptacles then you'll want to remove the romex all together and install conduit and then fish individual wires inside the conduit between receptacles. It's not preferred to install romex inside of conduit that's enclosed at both ends, so installing three individual wires, a hot, neutral and ground all rated THHN/THWN would be the way to go. This link will show you all the details
Whichever way you go because this is an unfinished basement just be sure that the receptacles on this circuit are GFCI protected